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The PolarPro Helix 77mm Tread Plate is a magnetic adjustment ring that attaches directly to a lens filter thread. Once installed, it is compatible with all filters in the Helix magnetic filter system.
Providing a secure attachment with a magnetic connection and a quarter-turn locking mechanism, the Helix system makes installing and removing filters lightning fast.
Made from durable brass, it is also compatible with the Helix Defender Plate, offering complete lens protection.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.